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| Mirrors > Home > MPE Home > Th. List > dmv | Structured version Visualization version GIF version | ||
| Description: The domain of the universe is the universe. (Contributed by NM, 8-Aug-2003.) |
| Ref | Expression |
|---|---|
| dmv | ⊢ dom V = V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssv 3960 | . 2 ⊢ dom V ⊆ V | |
| 2 | dmi 5910 | . . 3 ⊢ dom I = V | |
| 3 | ssv 3960 | . . . 4 ⊢ I ⊆ V | |
| 4 | dmss 5891 | . . . 4 ⊢ ( I ⊆ V → dom I ⊆ dom V) | |
| 5 | 3, 4 | ax-mp 5 | . . 3 ⊢ dom I ⊆ dom V |
| 6 | 2, 5 | eqsstrri 3983 | . 2 ⊢ V ⊆ dom V |
| 7 | 1, 6 | eqssi 3952 | 1 ⊢ dom V = V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 Vcvv 3454 ⊆ wss 3904 I cid 5554 dom cdm 5660 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 ax-sep 5256 ax-pr 5403 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-sn 4589 df-pr 4591 df-op 4595 df-br 5109 df-opab 5173 df-id 5555 df-xp 5666 df-rel 5667 df-dm 5670 |
| This theorem is used by: nowisdomv 30836 |
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